Washing machine having means for selecting water temperature, wash speed and spin speed



Filed Dec. 17,195?

f Oct. '1, 1963 a. EYISKIN ETAL 3,105,375

WASHING MACHINE 'HAVING'MEANS FOR SELECTING WATER TEMPERATURE, WASHSPEED AND SPIN SPEED 4 Sheets-Sheet l g a I\ N t A 3 0 9 Q 2; m E E in6AM LY EfiN U G. Ry5ERT \M COUFFER JR.

AT TORNEY Oct. 1, 1963 s. G. ESKlN ETAL 75 WASHING MACHINE HAVING MEANSFOR SELECTING WATER TEMPERATURE, WASH SPEED AND spm SPEED Filed Dec. 17,1957 I 4 Sheets-Sheet 2 s4, 51 as s2 s5 I so as 79 12 5a 55 s 95 5a 52 5H as 54 44 'V'VVY 42 I354 4| 49 Z4245 40 FIG. 2

INVENTOR5 GAMUELG. E6l lN AT TO RN EY Oct. 1, 1963 s. e. ESKIN ETAL3,105,375

WASHING MACHINE HAVING MEANS FOR SELECTING WATER TEMPERATURE, WASH SPEEDAND SPIN SPEED Filed Dec. 17. 1957 4 Sheets-Sheet 3 FIG; 5

INVENTOR5 GAMUEL a. KIN 2 36811 w. cou FFER .Jrz

ATTORNEY Oct. 1, 1963 Filed Dec. 17, 1957 Ill H2 TIMER s. G WASHINGMACHINE Eskm ETAL. 3,105,375

HAVING MEANS FOR SELECTING WATER TEMPERATURE, WASH SPEED AND SPINSPEEDI'I 4 Sheets-Sheet 4 INVENTOR AMUEL G.E5I IN R Q BERPW- ccu FFERJR.

ATTORN EY United States Patent 3,105,375 WAEHING MACHINE HAVING MEANSFOR SE- LECTING WATER TEMPERATURE, WASH SPEED AND SPIN SPEED Samuel G.Eslrin, (Ihicago, and Robert W. Coufler, In, Gait Park, 111., assignorsto The Dole Valve (Zompany, Morton Grove, Ill., a corporation ofIllinois Filed Dec. 17, 1957, Ser. No. 703,374 4 Claims. (Cl. 6812) Thisinvention relates to improvements in controls for household automaticclothes washing machines and more particularly relates to control meansfor preselecting the temperature of the water to be delivered to amachine through a mixing valve for wash and rinse operations and forpreselecting the speed of wash and spin operations performed by themachine.

Early automatic clothes washing machines had means for selecting thetemperature of the water for washing, but the temperature for rinsingand the speed of wash and spin operations were not adjustable and notsuitable for certain fabrics. Improved machines now have means forselecting the temperature of the water for both washing and rinsingoperations and for selecting the speed of wash and spin operations, itbeing possible to select any combination of Warm to hot wash watertemperature, cold to warm rinse Water temperature, fast or slow washspeed, and fast or slow spin speed, so that now any type of fabric maybe washed automatically just as well as by hand. Prior to our invention,however, the above four selections required checking and possiblyresetting four different controls on the machine. In addition, the timerand possibly controls for other things such as automatic dispensers hadto be set. With so many controls to be set, it is readily apparent thata housewife might become confused. Fewer controls to be set wouldsimplify operation of the machine and also save time.

Therefore, a principal object of our invention is to reduce the numberof separate controls required to be set on an automatic clothes washingmachine in the selection of wash water temperature, rinse Watertemperature, wash speed, and spin speed.

Another object of our invention is to provide a combination controldevice for use in an automatic clothes washing machine wherein selectionof the temperature of water to be delivered to the machine automaticallyalso selects the speed of various operations to be performed by themachine.

A further object of our invention is to provide a combination adjustablehot and cold water mixing valve and electric switch, wherein adjustmentof the mixing valve to select the temperature of mixed water to bedelivered thereby also determines the operative position of the electricswitch.

Still another object of our invention :is to provide a combinationcontrol device including an adjustable hot and cold water mixing valvehaving two separate adjusting means for preselecting the temperature ofmixed water to be delivered thereby during successive operations and twoelectric switches, wherein selection of the temperature of mixed waterto be delivered by the valve for the first operation also determines theoperative position of one of said switches, and selection of the temperature of mixed water to be delivered by the valve for the secondoperation also determines the operative position of the other of saidswitches.

Another object of our invention is to provide for an automatic clotheswashing machine a control device including an. adjustable mixing valvehaving means for preselecting the temperature of water to be deliveredby the valve for a washing operation, means for preselecting thetemperature of water to be delivered by the valve for a rinsingoperation and means for automatically shifting from the preselected washwater temperature to the preselected rinse water temperature during theoperation of the machine, wherein selection of the wash watertemperature also determines the wash speed, such as the speed of anagitator, and wherein selection of the rinse water temperature alsodetermines the spin speed.

A further object of our invention is to provide for an automatic clotheswashing machine a control device including an adjustable mixing valvehaving means for preselecting the temperature of water to be deliveredby the valve for a washing operation, means dependent on the selectionof Wash water temperature for determining the temperature of water to bedelivered by the valve for a rinsing operation, and means forautomatically shifting from the preselected wash water temperature tothe dependent rinse water temperature during the operation of themachine, wherein selection of the wash water temperature also determinesthe wash speed and the spin speed, as well as the rinse watertemperature.

Another object of our invention is to provide in a con trol system foran automatic clothes Washing machine means for preselecting thetemperature of the water to be delivered to the machine through a mixingvalve for wash and rinse operations and for preselecting the speed ofwash and spin operations which are simpler and more economical tomanufacture than such means in former control systems.

These and other objects of the invention will appear from time to timeas the following specification proceeds and with reference to theaccompanying drawings wherein: j

FIGURE 1 is a view in side elevation, partlyin section, of a combinationcontrol device constructed in accordance with our invention;

FIGURE 2 is a vertical sectional view tion line IIII in FIGURE 1;

FIGURE 3 is a view similar to FIGURE 2, but illustrating anotherembodiment of our invention;

taken along sec- FIGURE 4 is an electricalcircuit diagram for theembodiment of our invention illustrated in FIGURE 2; and FIGURE 5 is anelectrical circuit diagram for the em bodiment of our inventionillustrated in FIGURE 3.

In the embodiment of the invention illustrated in FIG- URES 1 and 2 ofthe drawings, the device is shown as comprising a mixing valve body 10,having hot and cold water inlets 11 and 12, respectively, leadingthroughsui-table passageways (not shown) into a metering chamber 13,having a central aligned mixing chamber 14 in direct communication withone end thereof. The hot water thermoplastic material. Brass and nylonare satisfactory materials.

The inlets 11 and 12 are shown in FIGURE 1 as being provided withscreens to strain out any large particles of matter, and may also beprovided with check valves, as shown and described in US. Patent No.2,620,l-33.

The valve body has a passageway 15, communicating through a port (notshown) with mixing chamber 14, leading to an annular passageway 16opening to one side of the valve body and closed by a solenoidcontrolled pressure operated diaphragm valve 17. When the diaphragmvalve 17 is open, water from the mixing chamber 14 will fiow throughpassageways 15 and 16 radially inwardly across the inner surface ofdiaphragm valve 17 to a passageway 18 leading to an outlet '19 from thevalve body 10.

The valve 17 is a well known form of pressure operated solenoidcontrolled diaphragm valve in' which an armature 20 of a solenoid 21 isslidably guided within a magnet coil 22 of the solenoid and is engagedwith a central orifice 23 leading through the diaphragm valve by aspring 24. The diaphragm valve has a bleed passage (not shown) in thethinner portion thereof leading therethroug-h to pass water from oneside of the diaphragm to the other and create a pressure differential onopposite sides of the diaphragmwhen the orifice 23 is closed byengagement with the armature 20, to maintain the valve closed by thepressure of the water acting on the outer face thereof. Uponenergization of the magnet coil 22', the armature 20 will move out ofengagement with the central orifice 23, relieving pressure from theouter side of the diaphragm valve 17 to effect opening of said diaphragmvalve by the pressure of fluid on the inner side thereof.

The outlet -19 is shown in FIGURE 2 as being in the dorm of a metalfitting 25 sealed to the opposite wall of the valve body from the inlets11 and 12 and retained in sealing engagement with the valve body by ayoke 26 engaging said fitting and secured to the valve body as byself-tapping screws 27 extending through said yoke and threaded withinthe valve body 1%.

' The fitting 2-5 is shown as having a generally tubular seating andpassageway member 28 extending therealong, the inner wall of which formsthe outlet 19 from the valve. The inner face of the passageway member 28is shown as forming a seat for a resilient flow control device 29 formaintaining a substantially constant rate of flow through the outlet 19regardless of variations in inlet pressure of fluid entering the valvebody through the inlets 11 and 12, on principles clearly shown anddescribed in Patent No. 2,454,929, which issued to Leslie A. Kempton onNovember 30', 1948, and forms no part of the present invention so notherein shown or described further.

A hollow piston valve 3 0 is provided to meter hot and cold water fromthe metering chamber 13 into the mixing chamber 14. The piston valve 3%is guided within a generally cylindrical insert 31 extending along thewall of the metering chamber 13 and apertured at its periphery midway ofits length to accommodate the fiow of cold water thereinto from the coldwater inlet 12. The insert 31 is sealed to the Wall of the chamber 13 byspaced seals 32 and 33 and is retained in engagement with shoulderedportions 34 extending inwardly from the wall of the metering chamber bya retaining ring 35, which may be a snap-ring snapped into the wall ofthe chamber 13 in engagement with the outer end of insert 31. The insert31 is provided with an inwardly extending flanged portion 36 extendingfrom the inner end thereof and sealed to the wall of the piston valve30, as by a sealing member 37.

The insert 31 is also provided with a flange 38 extending inwardlytherefrom adjacent the outer end thereof and forming a seat for anannular end valve face 39 of the piston valve 30. The opposite end ofthe piston a ivalve 36 is seated against an annular seat 4% shown asbeing formed integrally with an end wall 41 of the metering chamber 13.

A spring 42 seated at one end in the end wall 41 within the annular seat41} and at its opposite end on a stirrup 43 for a thermal'element 44 isprovided to bias the piston valve 30 toward the face of the flange 33and block the flow of cold water into the mixing chamber 14 andaccommodate the flow of hot water thereinto and also to retract anextensible power member 45 of the thermal element 44 upon cooling ofsaid thermal element.

The thermal element 44 is shown as being of the so called power type ofthermal element wherein a fusible thermally expansible materialcontained within a casting 46 of the thermal element extends the powermember or piston 45 from a cylinder 47 of the thermal element as thetemperature of water in the mixing chamber 14 approaches the fusionpoint of the thermally expansible material, as shown and described inPatent No. 2,3 68,181 which issued to Sergius Vernet on January 30,1945, and forms no part of our present invention so not herein shown ordescribed further.

The stirrup 4-3 against which the power member 45 of the thermal element44- acts is maintained in position within the piston valve 30 by anovertravel spring 4-55 seated at one end on an annular rib 49 extendinginwardly from the wall of the piston valve 3% and seated at its oppositeend on the stirrup 4-3 and maintaining said stirrup in engagement with asnap-ring 5t engaging an annular rib 51 extending inwardly from the wallof the piston valve 3t? adjacent the valve face 39 thereof.

The means for adjusting the operative position of the thermal element44- to adjust the controlled temperature of mixed water in the mixingchamber 14. includes a shaft or pin 52 extending from a spider 53encircling the casing 46 of the thermal element and engaging a clampingring 54 of said thermal element.

The pin 52 extends through and is mounted for sliding movement along asealing plate 55 carried in an end plate 56 suitably secured and sealedto the valve body 10 to close mixing chamber 14. A sealing ring 57recessed within the sealing plate 55 has sealing engagement with the pin52 and is retained in sealing engagement therewith as by a retainingring 58.

The heating coil 73 includes a pair of terminals 82 and 33 which arerespectively connected to a pair of termi nals 84 and '35 extendingthrough cap member 78. The terminal 82 is connected directly to theterminal 84, while the terminal 83 is connected to terminal 85 through anormally closed switch 86 mounted inside cap member 78 and having aswitch arm '87 extending therefromcver the edge of heating coil 73 to beengaged thereby and open the contacts of switch 86 to deenergize heatingcoil 73 upon a predetermined travel of thermal element '72 againstspring 89* after legs 68 have engaged cam surface 67.

An extension of end plate 56 serves as a mounting for a pair of twoposition single polo double throw switches 88 and 89 suitably fastenedthereto as by rivets 9i and having switch arms 91 and 92 biasedrespectively into engagement with cam surfaces 93 and 94 formed on theunderside of cams 63 and 66 at their peripheries. The switch arm 91engages either contact 95 or contact 96 of switch 88, and the switch arm92 engages either contact 97 or contact 93 of switch 89. While shown asleaf spring switches for ease of illustration and explanation, it isunderstood that preferably switches 83 and-89 should be of a snap actingtype.

FIGURE 4'is a schematic wiring diagram illustrating one method in whichthe embodiment of our invention shown in FIGURES 1 and 2 may be used. Atimer 99 for a washing machine is connected to a source of electricalpower through power lines 10%} and 191.

A motor for the washing machine is generally indicated at 10 As anexample, the motor 194 may be a two-speed motor and may alternatelydrive either the agitator of a washing machine for Washing and agitatedrinsing of clothes, or a perforated inner tub of a washing machine, forspray rinsing and spin drying of the clothes, all according to theoperation called for by the timer at a particular time. The high speedwindings for the motor 104- are indicated at 105, and the low speedwindings are indicated at 1116. It should be understood that provisionof different speeds may be made by shifting of gears, clutches, belts,etc., rather than by a two-speed motor.

A line 102 from the timer is connected to the switch 88, which controlsthe wash speed of the machine, or the speed at which the agitator isdriven during washing and agitated rinse operations. The contact 95 ofwhich 88 is connected to low speed windings 106 of motor 1%, and contact96 of switch 88 is connected to high speed windings 105 of motor 104. Aline 163 from the timer is connected to solenoid 21 for energizing thecoil 22 and opening valve 17 to admit water at the selected washtemperature to the machine for the washing operation.

For a washing operation, the position of pin 52, and hence the operativeposition of thermal element 44 determining the temperature of mixedwater to be delivered to the washing machine for the washing operation,is determined by the position of a cam follower 59 guided in slots 69 ofa flanged cylindrical casing member 61 having its flanged end secured toend plate 56 in any suitable manner.

The follower 59 has oppositely projecting legs 62 extending through andbeyond the slots 66 in casing member 61. The legs 62 are normally inengagement with a cam surface 64 on the underside of a wash cam 63 todetermine the operative position of thermal element 44 and thetemperature of mixed water delivered to the washing machine for theWashing operation. The wash cam 63 rotatably engages the outer surfaceof casing member 61 and is retained to said casing member as by asnap-ring 65 engaging the opposite face of said wash cam from the camsurface 64 thereof and separating said Wash cam from a rinse cam 66.

The rinse cam 66 is also rotatably mounted on the casing member 61 andhas a cam surface 67 on the upper side thereof engaged by oppositelyprojecting legs 68 of a cam follower 69 to determine, through abuttingcam follower 59 and pin 52, the operative position of thermal element 44and the temperature of mixed water delivered to the washing machine fora rinsing operation.

The legs 63 extend through slots 70 in casing member 61 and are normallyout of engagement with cam surface 67, but for the rinsing operationthey are moved into engagement with cam surface 67 by an extensiblepower member 71 of a thermal element 72 mounted in casing member 61 andsimilar to thermal element 44 but having an electrical heating coil 73mounted on the casing thereof.

The thermal element 72 is provided with a spider 74 mounted on aclamping ring 75 thereof and having legs 76 extending through slots 77in casing member 61. A hollow cap member 78 surrounds the upper portionof easing member 61 and is secured thereto through a ring 79. Anovertravel safety spring 86 for thermal element 72 surrounds casingmember 61 and seats at one end on a shoulder 81 of cap member 78 and atthe other end on legs 76 of spider 74.

.A line 107 from the timer is connected to the switch 89, which controlsthe spin speed of the machine, or the speed at which a perforated innertub is spun to wring water out of the clothes. The contact 97 of switch89 is connected to low speed windings 106 of motor 104, and contact 98of switch 89 is connected to high speed windings 165 of motor 104. Aline 108 from the timer is connected to solenoid 21 for energizing thecoil 22 and opening valve 17 to admit water at the selected rinsetemperature to the machine for the rinsing operation.

A line 109 from the timer is connected to heating coil 73 for energizingthe heating coil to shift the thermal element 44 and change from thewash temperature setting thereof determined by cam 63 to the rinsetemperature setting thereof determined by cam 66.

' A line 110 from the timer is connected to a solenoid coil 111 forshifting the operative driving connection of motor 104 from the agitatorof the machine to the perforated tub thereof for spinning water out ofthe clothes. It will be understood that a drain valve may be opened anda pump energized at the time of the spinning operation.

For ease of illustration, return connections have. not been shown, butit is understood that lines 112, 1 13, 1'14, 115, and 116 are returnlines connected to the return side of power lines 100 and 101.

In the embodiment of the invention illustrated in FIG- URE 3 of thedrawings, explanation may most simply be made by comparison with thedevice of FIGURES 1 and 2. With the exceptions set forth below, theparts of the device of FIGURE 3 are identical with the .parts of thedevice of FIGURES 1 and 2, and for this reason the parts of the deviceof FIGURE 3 are not separately described,

and certain identical parts are numbered with the same numbers as inFIGURE 2.

The device of FIGURE 3 has been made non-thermostatic by replacing pin52, spider 53, and thermal element 44 of the device of FIGURE 2 with apin 52a extending from wash cam follower 59 all the way to stirrup 43.

In the device of FIGURE 3, the switches 88 and 89 of FIGURE 2 have beenreplaced by a single switch 88a, and rinse cam 66 of FIGURE 2 withswitch actuating cam surface '94 has been replaced by cam 66a having nolower peripheral cam surface and keyed to Wash cam 63 by a pin 117.

FIGURE 5 is a schematic wiring diagram for the device of FIGURE 3, andis identical with FIGURE 4 except for the removal of switch 89 and theconnections thereto, it being understood that the switch 88a willcontrol both the wash speed and the spin speed of the machine. However,in this case the wash speed and spin speed are not independent, bothbeing either high or low according to whether switch arm 91a is inengagement with contact 96a connected to high speed windings 1115 ofmotor 104 or contact a connected to low speed windings 106 of motor 164.

In the operation of the device of FIGURE 2, the wash cam 63 is set tothe desired temperature of water to be delivered to the machine for thewashing operation. At this time, cam follower 59 is held in engagementwith cam surface 64 by spring 42 acting through stirrup 43, thermalelement 44, and pin 52, and the cam surface 64 thus determines theoperative position of the thermal element 44. At the same time, camsurface 93 determines the operative position of switch arm 91 accordingto the selected temperature of the wash water. Normally switch arm 91will engage contact 95 to effect a slow agitatorv speed for low washtemperatures and contact 96 to effect a high agitator speed for highwash temperatures, but cam surface 93 may be designed to give anydesired correlation between agitator or Wash speed and wash temperature.Similarly, the rinse cam 66 is set to the desired temperature of waterto be delivered to the machine for the rinsing operation, and camsurface 94 determines the operative position of switch arm 92 accordingto the selected temperature of the rinse water. Normally switch arm 92will engage contact 97 to effect a slow spin speed for low rinsetemperatures and contact 98 to effect a high speed for high rinsetemperatures, but cam surface 574 may be designed to give any desiredcorrelation between spin speed and rinse temperature.

After the earns 63 and 66 have been adjusted to the desired settings,the timer is turned to start the machine. Solenoid 21 is energized bythe timer through line 103 to open valve '17 and admit water at theselected temperature to the machine for the washing operation. If themixed Water passing through mixing chamber 14 is hotter 7 switch 88a.

than the selected temperature, the thermal element 44 Will be heated andpiston 45 thereof will be extended to move piston valve 30 closer toseat 46 and away from flange 38 to reduce the amount of hot wateravailable from inlet 11 and increase the amount of cold water availablefrom inlet 12. Ifthe mixed water passing through the mixing chamber 14is colder than the selected temperature, the thermal element 44 will becooled and spring 42 will move piston valve 3% away from seat 43 andtoward flange 38 to increase the amount of hot water available frominlet 11 and reduce the amount of cold water available from inlet 12.After a predetermined amount of water has been admitted to the machine,solenoid 21 is deenergized and washing takes place at the wash speeddetermined by the wash temperature setting. After the washing operation,solenoid coils such as 111 are energized to open a drain valve, start apump, and shift the driving connection of motor 104 from the agitator toperforated inner tub to spin the wash water from the clothes at thespeed determined by the rinse temperature setting.

The Washing machine and its particular sequence of operations are nopart of the present invention, and are not herein shown or described indetail, but by way of example, suffice it to say that after the washingoperation and discarding of the Wash water, one or several rinsingoperations will occur. At this time heating coil '73 will be energizedto extend piston 71 from thermal element 72 and move wash cam follower59 away from Wash cam 63 and move rinse cam follower 69 into engagementwith rinse cam 66 to change the operative position of thermal element44, so that when rinse water is adrnitted to the machine by energizationof solenoid 21 through line 108, the selected temperature of rinse waterwill be attained.

After cam follower 69 engages rinse cam 66, continued heating of thermalelement 72 by heating coil 73 will cause it to back up against thespring 8! until it opens switch 86. Subsequent cooling permits spring 8%to return element 72 and again close switch 86. In this'manner,overheating of element 72 is prevented.

After the rinsing operation or operations, the rinse Water is spun fromthe clothes at the speed determined by the rinse temperature setting.

The device of FIGURE 3 will operate in a similar manner, except in thiscase only one setting need be made. The Wash cam 63 is set to thedesired wash water temperature, and at the same time the rinse watertemperature will be determined by rinse cam 66a keyed thereto and thewash and spin speeds will be determined by The temperature of the mixedwater for Washing and rinsing operations will vary with the temperatureof the hot and cold water entering inlets 11 and 12, since in FIGURE 3the position of piston valve 30 is determined by pin 52a and nothermostatic compensation is provided.

It will be understood that various combinations of the devices ofFIGURES 2 and 3 are possible. For example, the independent cams 63 and66 and two switches 88 and $9 of FIGURE 2 might be combined with thenon-thermostatic valve of FIGURE 3, or the thermostatic valve of FIGURE2 might be combined with the dependent cams 63 and 66a and the singleswitch 88:: of FIGURE 3. In addition, a single switch such as 88minFIGURE 3 might be used with either a thermostatic or a non-thermostaticvalve, with cams 63 and 66a of FIGURE 3 not keyed together by pin 117.In such a case, the rinse temperature would not be determined by thewash temerature, but the spin speed would be determined by the washspeed.

Various other modifications might be made without departing from thespirit and scope of the novel concepts of our invention. In thefollowing claims, wash speed is intended to mean the speed of thewashing action of any suitable mechanism, such as the speed ofoscillation of an agitator in an agitator type machine, the speed ofrotation of a tub in a tumbling type machine, etc. Spin speed isintended to mean the speed of rotation of a tub to extract water fromclothes by centrifugal force.

.We claim as our invention:

l. In a valve and switch assembly for delivering a regulated quantityoffluid at predetermined temperatures and supplying electrical energy tooperate a device at different speeds in accordance with a selectedtemperature setting, a valve body having a chamber therein, hot and coldwater inlets leading into said chamber, an outlet leading from saidchamber, a shut-off valve associated with said outlet for controllingthe flow of fluid therethrough, valve means in said chamber for meteringthe flow of hot and cold water thereinto from said inlets in accordancewith the position thereof when said shut-oil valve is open, a thermallyresponsive element in said chamber for operating said valve means andcontrolling the temperature of mixed water flowing through said outlet,manually adjustable means on the outside of, said valve body having afirst portion operatively associated with said thermally responsiveelement for adjusting the operative effect of said element on said valvemeans and preselecting the control temperature of mixed water to befurnished through said outlet for one operation and having a secondportion independent of said first portion for adjusting the operativeeffect of said thermally responsive element on said valve means anddetermining the control temperature of water to be furnished throughsaid outlet for a second position, means for shifting the operativetemperature setting of said thermally responsive element from atemperature determined by said first portion of said adjustable means toa temperature determined by said second portion of said adjustablemeans, and switch means associated with said first and second portionsof said adjustable means automatically selecting the speed of operationof the device to be operated in accordance with selected tempe aturesettings for each portion of said adjustable means.

2. In a valve and switch assembly for delivering a regulated quantity offluid at preselected temperatures and supplying electric energy tooperate a device at different speeds in accordance with a preselectedtemperature setting, a valve body having a chamber therein, hot and coldwater inlets leading into said chamber, an outlet leading from saidchamber, a shut-off valve associated with said outlet for controllingthe flow of fluid therethrough, valve means in said chamber for meteringthe flow of hot and cold water thereinto from said inlets in accordancewith said position of said valve means when said shut-off valve is open,a thermally responsive element in said chamber for operating said valvemeans and controlling the temperature of mixed water flowing throughsaid outlet, two temperature selector cams on the outside of said valvebody operable to preselect the temperature of the fluid for differentcyclic operations, means for shifting the operative temperature settingof said thermally responsive element from a temperature,

determined by said first cam to a temperature determined by said secondcam, and speed control switch means associated with each of said camsfor selecting difierent operative speeds of the device to be operated inaccordance with the preselected temperature settings of said cams.

3. A valve and switch assembly in accordance with claim 2, wherein thetemperature selector cams are annular and have inner cam surfacespreselectingthe temperature of the fluid delivered through said outletfor ditferent cyclic operations and wherein the cams have outer camsurfaces having operative engagement with said switch means forselecting an operative speed in accordance with preselected temperaturesof fluid selected by said cams.

4. In a washing machine, a variable speed motor, means operativelyconnected to said motor and driven thereby for providing at least one ofa plurality of wash speeds and a plurality of spin speeds, at variablemixing valve for controlling the supply of hot and cold water to saidmachine and including adjustable means movable manually to a pluralityof positions to vary the water temperature by varying the proportion ofhot and cold Water flowing through the valve, means for controlling theoperation of :said motor and including switch means for determining thespeed of said motor, said switch means being operatively connected tosaid adjustable means and operable thereby.

References Cited in the file of this patent UNITED STATES PATENTSBariffi Aug 11, Edwards Aug. 19, Edwards Aug. 24, Kempton Nov. 29, Chaceet a1. Apr. 10, Von Wagenheim Nov. 3, Conlee July 1,

4. IN A WASHING MACHINE, A VARIABLE SPEED MOTOR, MEANS OPERATIVELYCONNECTED TO SAID MOTOR AND DRIVEN THEREBY FOR PROVIDING AT LEAST ONE OFA PLURALITY OF WASH SPEEDS AND A PLURALITY OF SPIN SPEEDS, A VARIABLEMIXING VALVE FOR CONTROLLING THE SUPPLY OF HOT AND COLD WATER TO SAIDMACHINE AND INCLUDING ADJUSTABLE MEANS MOVABLE MANUALLY TO A PLURALITYOF POSITIONS TO VARY THE WATER TEMPERATURE BY VARYING THE PROPORTION OFHOT AND COLD WATER FLOWING THROUGH THE VALVE, MEANS FOR CONTROLLING THEOPERATION OF SAID MOTOR AND INCLUDING SWITCH MEANS FOR DETERMINING THESPEED OF SAID MOTOR, SAID SWITCH MEANS BEING OPERATIVELY CONNECTED TOSAID ADJUSTABLE MEANS AND OPERABLE THEREBY.